How to hire a fractional Growth Lead in the UK
What the seat covers and costs is on the fractional Growth Lead page. This is the part that usually goes unwritten: how to interview for it, what should be true by day ninety, and when this hire is the wrong answer entirely.
UK day rates for the seat run £600–£1,100. All eleven seats compared →
Six questions to ask, and what a strong answer sounds like
Every question here asks for something that happened, not something they believe. An operator who has genuinely held the seat answers from memory; one who has advised from the sidelines answers in the abstract, and the difference is audible within a minute.
1. Say we get a thousand visits a month, forty sign-ups, and six of them pay. Where do you look first?
Listen for: Strong candidates go downstream first: what the six who paid did differently, what week-one retention looks like, whether the leak is activation. Weak ones start rewriting the landing page, which is the smallest number on the board.
2. What is your kill rule? How do you decide an experiment is dead?
Listen for: You want preset bounds: a sample size or a time box agreed before launch, and examples of pulling the plug on their own idea. Anyone who runs tests until they feel done is shopping for the answer they wanted.
3. What is the smallest improvement you have measured that you were confident was real?
Listen for: The question is a trap for exaggerators. Strong answers get smaller and more careful: a few points of activation, held across cohorts, checked against seasonality. Weak answers are large round uplifts with no baseline and no control.
4. Tell me about an attribution mess you inherited. What did you end up trusting?
Listen for: Good operators are openly pragmatic here: triangulating self-reported attribution against platform data, accepting that some channels cannot be measured cleanly. Anyone claiming a tool solved attribution for them has not looked closely at what it was reporting.
5. Which of your experiments changed the product rather than the marketing?
Listen for: The strong answer involves onboarding, pricing or an in-product moment, shipped with engineers, measured on retention. If every example lives in the ad account or on landing pages, you are talking to a paid media specialist wearing a growth title.
6. If our cost per acquisition doubled next month, what would your first week look like?
Listen for: Listen for economics by channel: which spend gets cut on what evidence, what payback period they hold spend to, what they check before touching anything. A weak answer jumps straight to diversifying channels, which is spending more to learn less.
Red flags
- Quotes uplift percentages from past roles with no baseline, sample size or timeframe attached. Real experimenters volunteer the caveats before you ask.
- The proposed plan is a list of channel tactics with nothing about activation or retention. That is a media plan, and it will pour more water into the same leaking bucket.
- Every experiment they describe worked. A genuine testing programme fails most of the time, so a perfect record means either a short memory or very few real tests.
- Presents what worked at their last company as directly portable to yours, before asking whether your motion, price point or buyer looks anything like theirs.
What day ninety should look like
Agree these before they start, in writing, in the brief. A fractional engagement without a ninety-day marker drifts into a retainer nobody remembers the point of.
- Measurement you can trust: one funnel dashboard with agreed metric definitions, and the known gaps in the data written down rather than glossed over.
- At least six experiments run with success criteria set before launch, each written up, failures included. The write-ups are the asset that outlasts the engagement.
- The biggest leak in the funnel named, with a number on what it costs you, and at least one shipped fix already being measured against it.
When a fractional Growth Lead is the wrong answer
- You are pre product-market fit with a handful of users. There is nothing to optimise and no volume to test against. The work at that stage is talking to customers, and it is founder work, not a hire.
- Engineering cannot ship anything for the next quarter. Growth experiments queue behind the roadmap and die there. Fix the capacity first or the engagement burns money waiting.
- One proven channel works and you simply want more of it. A channel specialist or an agency will scale it cheaper. Growth leads earn their rate on problems that cut across the funnel, not on volume in a solved channel.
If one of those is you, say so in a brief anyway and we will tell you straight. Sometimes the honest answer is interim or full-time, and pointing that out costs us nothing because the operator never pays us either way.
What to put in the brief
- Put your real numbers in the brief: monthly sign-ups, activation rate, month-one retention, even if they are rough and even if they embarrass you. Good candidates propose sharper work against real numbers, and the bench has seen worse than yours.
- State the engineering capacity they get, in concrete terms: days per sprint or a named developer. This is the first thing a serious growth operator asks, and "we'll figure it out" reads as no.
- The thing founders always forget: name the decision rights over live surfaces. Can they change onboarding, pricing page copy, or pause a channel without a sign-off queue? An operator who needs three approvals per test will run four experiments a quarter and you will both call it a failure.
Two ways in, one of them free
Browse verified fractional fractional growth leads on the bench and book direct at no cost, or brief Operator Search and we run the interviews above for you.